Sec Form 4/A Filing - ANSARI ASSAD A @ 3D SYSTEMS CORP - 2006-03-24

FORM 4/A Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person ANSARI ASSAD A 2. Issuer Name and Ticker or Trading Symbol 3D SYSTEMS CORP [ TDSC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Vice President (Last) (First) (Middle) C/O 3D SYSTEMS CORPORATION, 26081 AVENUE HALL 3. Date of Earliest Transaction (MM/DD/YY) 03/24/2006 (Street) VALENCIA, CA91355 4. If Amendment, Date Original Filed (MM/DD/YY) 03/28/2006 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/24/2006 A 0 ( 1 ) A $ 1 11,594 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other ANSARI ASSAD A C/O 3D SYSTE MS CORPORATION 26081 AVENUE HALL VALENCIA, CA91355 Vice President Signatures /s/ Robert M. Grace, Jr., Attorney-in-fact 06/08/2006 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On March 24, 2006, the Reporting Person was awarded the right to purchase from the Issuer 3,600 shares of restricted stock at a purchase price of $1.00 per share, in lieu of a cash bonus under the Issuer's 2004 Incentive Stock Plan based upon the achievement of certain performance objectives established for the year ended December 31, 2005. As reported on the Form 4 filed on behalf of the Reporting Person on March 28, 2006, the Reporting Person had until May 23, 2006 to elect to purchase such shares. This amendment is being filed to reflect the Reporting Person's May 23, 2006 election not to purchase any of the 3,600 shares of restricted stock and to receive a cash payment in lieu thereof. As of March 24, 2006, the Reporting Person owned 11,594 shares of Issuer common stock.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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